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Repeller‐Induced dissociation of alkyl alcohols in thermospray mass spectrometry
Author(s) -
Saar Jacob,
Haimberg Marcela,
Chenier Claude
Publication year - 1991
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210260415
Subject(s) - thermospray , chemistry , photoionization , alkyl , mass spectrometry , electron ionization , dissociation (chemistry) , mass spectrum , ion , molecule , methanol , ionization , polyatomic ion , photochemistry , analytical chemistry (journal) , medicinal chemistry , tandem mass spectrometry , chromatography , organic chemistry , selected reaction monitoring
Six alkyl alcohols were studied using thermospray mass Spectrometry. Whereas the dominant ion in the spectrum up to a repeller potential of 120 V was [M + NH 4 ] + , above that potential [M + H] + and fragment ions appeared. The fragments observed were largely due to hydrogen release from alkyl ions ([C n H 2 n +1 ] + – H2 → [C n H 2 n ‐1 ] + ) and loss of water or some other stable molecule from the same species. The results are compared with those from ionization of the same alcohols under electron impact and photoionization conditions and with results obtained for methanol under thermospray conditions.